JEE MATHEMATICS MCQ: STATISTICS

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The mean and standard deviation of the marks of 20 students were found to be 40 and 15 respectively. Later, it was discovered that a score of 60 was wrongly read as 40 , then the correct variance will be

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Correct option: D

244

Option D (244) is correct because it calculates the corrected variance after accounting for the error in the student's score.

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